I understand the use of a tight endplay used to pin the drum between thrust surfaces to control wobble. I use that method for C6s and TFs.
I have a problem with .006" though. I would guess that you're setting up your front unit endplay with the unit on a stand with the pump opening pointed straight up.
Are you loading the rear unit when you set your front unit endplay?
If not, how are you separating the influence that the rear unit endplay has on the front unit endplay?
If you are loading the rear unit when you set your front unit endplay, as you shoud be doing, what happens to your front unit endplay setting when the rear unit drops rearward? I would think you would have to check the front unit endplay with and without the rear unit loaded. And you would need two adjustable thrust locations in the front unit. There is an easier way. Never mind. I see how you can do that with one adjustable location.
I assume you are setting the front unit endplay with the transmisssion at room temperature.
What is that front unit endplay at operating temperatures?
What is the front unit endplay at above normal temperatures?
Even with .006" endplay, you will still have wobble. Why not control the drum radially, drop drum wobble to nearly nill, and make endplay adjustments easy? To each their own.
I have a problem with .006" though. I would guess that you're setting up your front unit endplay with the unit on a stand with the pump opening pointed straight up.
Are you loading the rear unit when you set your front unit endplay?
If not, how are you separating the influence that the rear unit endplay has on the front unit endplay?
If you are loading the rear unit when you set your front unit endplay, as you shoud be doing, what happens to your front unit endplay setting when the rear unit drops rearward? I would think you would have to check the front unit endplay with and without the rear unit loaded. And you would need two adjustable thrust locations in the front unit. There is an easier way. Never mind. I see how you can do that with one adjustable location.
I assume you are setting the front unit endplay with the transmisssion at room temperature.
What is that front unit endplay at operating temperatures?
What is the front unit endplay at above normal temperatures?
Even with .006" endplay, you will still have wobble. Why not control the drum radially, drop drum wobble to nearly nill, and make endplay adjustments easy? To each their own.